Kurian et al. [31] and Viitasaari et al. [19] demonstrated that O&G , proteins, carbohydrates,
nutrients and suspended solids are in high concentration in food industry wastewaters. Thus , the
sludge generated from flotation was rich in these pollutants .From Table 2, it reveals that the mean
calorific value of sludge generated from flotation was higher than that of the animal feeds and food
wastes because the sludge from flotation gave a mean value of 6690 cal/ g while that of the highest
of them was only 5257 cal / g [33:Guava waste].Therefore, the sludge from flotation was a potential
candidate to be reused as an animal feed with high energy value. Table2 also shows that the mean
total phosphorus level(0.11%) of the sludge from flotation approached that of the food wastes[32:
Bread and noodle waste—0.17 and 0.11%].The bread and noodle waste were usually collected by
farmers from restaurants and food processors to feed their swine and poultry .Therefore , the sludge
generated from flotation may be utilized as a feed for this farming.The table also reveals that the
mean protein content level(8.26%)of the sludge generated from flotation approached that of the
animal feeds (Native hay and Wheat straw: 9 .0 and 3.9%) [35] and the guava waste[33:9.61%] but
lower than that of most of the food wastes .Lira et al. [33] claimed that guava waste was used to feed
poultry (i. e . Broiler and laying hen).Therefore,the sludge generated from flotation maybe recycled as
a feed for the poultry farming.